A medium-sized loon. Pacific counterpart to Common Loon.

§ Quick facts

SizeBody 25–95 cm (10–37 in); wingspan 45–150 cm
Weight150–6,000 g
LifespanWild 8–30 years
OrderGaviiformes
FamilyGaviidae

§ Encyclopedia

The Pacific loon or Pacific diver is a medium-sized member of the loon, or diver, family.

Source: Wikipedia — Pacific loon Licensed under CC BY-SA 4.0

§ Identification

Field marks. Sleek loon with a smoothly rounded pale-gray head and nape, a straight thin bill held level, and (breeding) a black throat and checkered back. Often a thin dark 'chinstrap' in winter.

Similar species. Common Loon is much larger with a heavier bill; Red-throated Loon holds its bill tilted up and looks paler. Pacific's rounded gray nape is a good mark.

Voice. Wailing and yodeling calls on the breeding grounds; generally silent at sea.

§ Diet & behavior

Diet. Fish, aquatic invertebrates caught by foot-propelled dives.

Behavior. A trim loon that breeds on arctic tundra lakes and winters in flocks on the Pacific coast, diving for small fish; migrates in long lines along the shore.

§ Range

Pacific coast in winter; Arctic in summer

§ Habitat

Pacific waters

§ Threats

Habitat loss.

§ Conservation status

According to the IUCN Red List, the pacific loon is currently classified as Least Concern.

§ What helps

Support coastal conservation.

Support our work More ways to help

§ Further reading

§ Sources cited

  • Cornell Lab of Ornithology — All About Birds
  • National Audubon Society
  • iNaturalist
  • IUCN Red List